Matt Sigman

Hands-On Software Leader

Matt Sigman - Hands-On Software Leader

TFS 2012 Update 2 Error – TF400898

After upgrading Team Foundation Server 2012 to Update 2, we started to get an error when opening a PBI or Bug via the web portal.  This was the error:

TF400898: An Internal Error Occurred.


Not terribly helpful… Anyhow, after searching the web there were some similar-sounding issues but none of them helped.  In this case it turns out the problem was that non-Administrators received the error, but Collection Administrations did not get the error.  I’m not sure why that is the case yet, but will continue to look into it.

As a temporary solution for anyone with this issue, try giving increased permission to your team.

Telerik RadComboTree – A ComboBox with collapsible items


One of the most useful existing controls in the Telerik RadControls suite is the RadComboBox.  It offers multi-column support to template support, anything you need in a drop-down can be rendered in RadComboBox. The control provides a rich set of features which include: client-side API with events, load-on-demand, auto-complete, filtering, multi-column support, highly customizable appearance through skins, content template support and much more. All this flexibility comes packaged in a control that renders lightweight, semantic HTML for optimum page performance and SEO.

The one option it doesn’t have out of the box, is the ability to group nodes into a hierarchical relationship and collapse/expand them, similar to the RadTreeView control.

Introducing the RadComboTree

This control basically combines the ComboBox and the TreeView to have a drop-down hierarchical list of nodes that can optionally have checkboxes.

Continue reading “Telerik RadComboTree – A ComboBox with collapsible items” »

Telerik Test Studio and TFS 2012 integration issue

When integrating Test Studio with TFS 2012 we observed a small bug.  We have been able to reproduce it, and also come up with a fix that has been working for a while now.

The bug:

  1. When installing the Runtime edition of Test Studio on a standalone machine (without also having full Test Studio installed), the DLL ArtOfTest.WebAiiVSIP.dll is not installed.  This DLL is required to execute test lists from TFS.  The issue does not occur if we use the Telerk Scheduler to run the test list.  However in our case we are using TFS to execute the tests during a build.
  2. The other problem is that a registry entry is not created, which also is required when executing a Test Studio test lists via TFS: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\ Wow6432Node\Microsoft\VisualStudio\11.0\ EnterpriseTools\QualityTools\TestTypes.  See screenshot for full details.

Continue reading “Telerik Test Studio and TFS 2012 integration issue” »

Error applying SQL Server 2008 R2 SP2

If you get an error applying Service Pack 2 to SQL 2008 R2:

The patch installer has failed to update the following instance: MSSQLSERVER. To determine the reason for failure, review the log files.

And then if you go to the log file it mentions

Product: SQL Server 2008 R2 SP2 BI Development Studio – Update ‘Service Pack 2 for SQL Server Business Intelligence Development Studio 2008 (64-bit) (KB2630458)’ could not be installed. Error code 1603.

The problem occurs if you have deleted any files with the .log extension, or used the Microsoft Disk Cleanup wizard.  To fix it, go to Start > All Programs > Microsoft SQL Server 2008 R2 >  Configuration Tools > SQL Server Installation Center and run the wizard.  When prompted to choose which instance, select the option titled “<<Repair shared features only>>” and click Next, Next, Repair.  Then re-run the Service Pack and everything should install correctly.

Upgrading ASP.NET Web Application to Framework 4.5

When you’re first opening an application in VS2012 that targets some previous version of the framework (prior to version 4.5), a Project Compatibility wizard will open, prompting you to automatically update to the latest and greatest.

But what do you do if you cancel this wizard, but later decide to upgrade?

Turns out it’s very easy.  Just follow these few steps and VS2012 will take care of it for you.

  1. Open your Solution in Visual Studio 2012
  2. Right click on the first project, and choose Properties
  3. Choose .NET Framework 4.5 from the dropdown (see screenshot)
  4. Repeat for every project in your solution

Visual Studio will update the web.config and any other files that are necessary.  In other words, that’s all you have to do; easy!

If you run into any problems, see this article for help: